text: /* Definitions of target machine for GNU compiler,
     for IBM RS/6000 POWER running AIX V5.2.
     Copyright (C) 2002-2017 Free Software Foundation, Inc.
     Contributed by David Edelsohn (edelsohn@gnu.org).
  
     This file is part of GCC.
  
     GCC is free software; you can redistribute it and/or modify it
     under the terms of the GNU General Public License as published
     by the Free Software Foundation; either version 3, or (at your
     option) any later version.
  
     GCC is distributed in the hope that it will be useful, but WITHOUT
     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
     License for more details.
  
     You should have received a copy of the GNU General Public License
     along with GCC; see the file COPYING3.  If not see
     <http://www.gnu.org/licenses/>.  */
  
  /* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
     get control in TARGET_OPTION_OVERRIDE.  */
  
  #define SUBTARGET_OVERRIDE_OPTIONS					\
  do {									\
    if (TARGET_64BIT && ! TARGET_POWERPC64)				\
      {									\
        rs6000_isa_flags |= OPTION_MASK_POWERPC64;			\
        warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
      }									\
    if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128)			\
      {									\
        rs6000_long_double_type_size = 64;				\
        if (global_options_set.x_rs6000_long_double_type_size)		\
  	warning (0, "soft-float and long-double-128 are incompatible");	\
      }									\
    if (TARGET_POWERPC64 && ! TARGET_64BIT)				\
      {									\
        error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
      }									\
  } while (0);
  
  #undef ASM_SPEC
  #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
  
  /* Common ASM definitions used by ASM_SPEC amongst the various targets
     for handling -mcpu=xxx switches.  */
  #undef ASM_CPU_SPEC
  #define ASM_CPU_SPEC \
  "%{!mcpu*: %{!maix64: \
    %{mpowerpc64: -mppc64} \
    %{!mpowerpc64: %(asm_default)}}} \
  %{mcpu=power3: -m620} \
  %{mcpu=power4: -m620} \
  %{mcpu=power5: -m620} \
  %{mcpu=power5+: -m620} \
  %{mcpu=power6: -m620} \
  %{mcpu=power6x: -m620} \
  %{mcpu=powerpc: -mppc} \
  %{mcpu=rs64a: -mppc} \
  %{mcpu=603: -m603} \
  %{mcpu=603e: -m603} \
  %{mcpu=604: -m604} \
  %{mcpu=604e: -m604} \
  %{mcpu=620: -m620} \
  %{mcpu=630: -m620} \
  %{mcpu=970: -m620} \
  %{mcpu=G5: -m620}"
  
  #undef	ASM_DEFAULT_SPEC
  #define ASM_DEFAULT_SPEC "-mppc"
  
  #undef TARGET_OS_CPP_BUILTINS
  #define TARGET_OS_CPP_BUILTINS()     \
    do                                 \
      {                                \
        builtin_define ("_AIX43");     \
        builtin_define ("_AIX51");     \
        builtin_define ("_AIX52");     \
        TARGET_OS_AIX_CPP_BUILTINS (); \
      }                                \
    while (0)
  
  #undef CPP_SPEC
  #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}	\
    %{ansi: -D_ANSI_C_SOURCE}			\
    %{maix64: -D__64BIT__}			\
    %{mpe: -I%R/usr/lpp/ppe.poe/include}		\
    %{pthread: -D_THREAD_SAFE}"
  
  /* The GNU C++ standard library requires that these macros be 
     defined.  Synchronize with libstdc++ os_defines.h.  */
  #undef CPLUSPLUS_CPP_SPEC                       
  #define CPLUSPLUS_CPP_SPEC			\
    "-D_ALL_SOURCE				\
     %{maix64: -D__64BIT__}			\
     %{mpe: -I%R/usr/lpp/ppe.poe/include}		\
     %{pthread: -D_THREAD_SAFE}"
  
  #undef  TARGET_DEFAULT
  #define TARGET_DEFAULT 0
  
  #undef  PROCESSOR_DEFAULT
  #define PROCESSOR_DEFAULT PROCESSOR_POWER4
  #undef  PROCESSOR_DEFAULT64
  #define PROCESSOR_DEFAULT64 PROCESSOR_POWER4
  
  /* AIX does not support Altivec.  */
  #undef  TARGET_ALTIVEC
  #define TARGET_ALTIVEC 0
  #undef  TARGET_ALTIVEC_ABI
  #define TARGET_ALTIVEC_ABI 0
  #undef  TARGET_EXTRA_BUILTINS
  #define TARGET_EXTRA_BUILTINS 0
  
  /* Define this macro as a C expression for the initializer of an
     array of string to tell the driver program which options are
     defaults for this target and thus do not need to be handled
     specially when using `MULTILIB_OPTIONS'.
  
     Do not define this macro if `MULTILIB_OPTIONS' is not defined in
     the target makefile fragment or if none of the options listed in
     `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
  
  #undef	MULTILIB_DEFAULTS
  
  #undef LIB_SPEC
  #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
     %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
     %{!maix64:%{!shared:%{g*:-lg}}}\
     %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
     %{pthread:-lpthreads} -lc"
  
  #undef LINK_SPEC
  #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\
     %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
     %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
     %{mpe:-binitfini:poe_remote_main}"
  
  #undef STARTFILE_SPEC
  #define STARTFILE_SPEC "%{!shared:\
     %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
     %{!maix64:\
       %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
       %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
  
  /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
  
  #undef PTRDIFF_TYPE
  #define PTRDIFF_TYPE "long int"
  
  /* Type used for wchar_t, as a string used in a declaration.  */
  #undef  WCHAR_TYPE
  #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
  
  /* Width of wchar_t in bits.  */
  #undef  WCHAR_TYPE_SIZE
  #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
  
  /* AIX 4.2 and above provides initialization and finalization function
     support from linker command line.  */
  #undef HAS_INIT_SECTION
  #define HAS_INIT_SECTION
  
  #undef LD_INIT_SWITCH
  #define LD_INIT_SWITCH "-binitfini"
  
  #ifndef _AIX52
  extern long long int    atoll(const char *);  
  #endif
  
  /* This target uses the aix64.opt file.  */
  #define TARGET_USES_AIX64_OPT 1
  
  /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
     but does not have crtbegin/end.  */
  
  #define TARGET_AIX_VERSION 52
  